NCC(=O)NCC(=O)NCC(=O)N1CCC[C@@H]1C(=O)O mol14659 0_1 [NH3+]CC(=O)NCC(=O)NCC(=O)N1CCC[C@@H]1C(=O)[O-] mol14659 0_2 [NH3+]CC(=O)NCC(=O)NCC(=O)N1CCC[C@@H]1C(=O)O mol14659 1_1 NCC(=O)NCC(=O)NCC(=O)N1CCC[C@@H]1C(=O)[O-] mol14659 -1_1